#!/usr/bin/env bash

########################
# this script get from https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.3/install.sh
#
# HOW TO USE
#
# ## 1. execute nvm-install.sh
# chmod +x nvm-install.sh
#
# ## 2. set bashrc (maybe has been updated, just reload .bashrc)
# export NVM_DIR="${HOME/.config/nvm}"
# [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"  # This loads nvm
# [ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"  # This loads nvm bash_completion
#
# ## 3. Download and install Node.js:
# nvm install 22
#
# ## 4. Verify the Node.js version:
# node -v # Should print "v22.19.0".
#
# ## 5. Verify npm version:
# npm -v # Should print "10.9.3".
#
# ## 6. Set npm source
# npm config set registry https://registry.npmmirror.com
########################

# default value
CUSTOM_NVM_VERSION=${CUSTOM_NVM_VERSION:-"v0.40.3"}
GITHUB_URL=${GITHUB_URL:-"https://gh-proxy.net/https://github.com"}
GITHUB_USER_CONTENT_URL=${GITHUB_USER_CONTENT_URL:-"https://gh-proxy.net/https://raw.githubusercontent.com"}

{ # this ensures the entire script is downloaded #

  nvm_has() {
    type "$1" >/dev/null 2>&1
  }

  nvm_echo() {
    command printf %s\\n "$*" 2>/dev/null
  }

  if [ -z "${BASH_VERSION}" ] || [ -n "${ZSH_VERSION}" ]; then
    # shellcheck disable=SC2016
    nvm_echo >&2 'Error: the install instructions explicitly say to pipe the install script to `bash`; please follow them'
    exit 1
  fi

  nvm_grep() {
    GREP_OPTIONS='' command grep "$@"
  }

  nvm_default_install_dir() {
    [ -z "${XDG_CONFIG_HOME-}" ] && printf %s "${HOME}/.nvm" || printf %s "${XDG_CONFIG_HOME}/nvm"
  }

  nvm_install_dir() {
    if [ -n "$NVM_DIR" ]; then
      printf %s "${NVM_DIR}"
    else
      nvm_default_install_dir
    fi
  }

  nvm_latest_version() {
    nvm_echo "${CUSTOM_NVM_VERSION}"
  }

  nvm_profile_is_bash_or_zsh() {
    local TEST_PROFILE
    TEST_PROFILE="${1-}"
    case "${TEST_PROFILE-}" in
    *"/.bashrc" | *"/.bash_profile" | *"/.zshrc" | *"/.zprofile")
      return
      ;;
    *)
      return 1
      ;;
    esac
  }

  #
  # Outputs the location to NVM depending on:
  # * The availability of $NVM_SOURCE
  # * The presence of $NVM_INSTALL_GITHUB_REPO
  # * The method used ("script" or "git" in the script, defaults to "git")
  # NVM_SOURCE always takes precedence unless the method is "script-nvm-exec"
  #
  nvm_source() {
    local NVM_GITHUB_REPO
    NVM_GITHUB_REPO="${NVM_INSTALL_GITHUB_REPO:-nvm-sh/nvm}"
    if [ "${NVM_GITHUB_REPO}" != 'nvm-sh/nvm' ]; then
      { nvm_echo >&2 "$(cat)"; } <<EOF
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@    WARNING: REMOTE REPO IDENTIFICATION HAS CHANGED!     @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!

The default repository for this install is \`nvm-sh/nvm\`,
but the environment variables \`\$NVM_INSTALL_GITHUB_REPO\` is
currently set to \`${NVM_GITHUB_REPO}\`.

If this is not intentional, interrupt this installation and
verify your environment variables.
EOF
    fi
    local NVM_VERSION
    NVM_VERSION="${NVM_INSTALL_VERSION:-$(nvm_latest_version)}"
    local NVM_METHOD
    NVM_METHOD="$1"
    local NVM_SOURCE_URL
    NVM_SOURCE_URL="$NVM_SOURCE"
    if [ "_$NVM_METHOD" = "_script-nvm-exec" ]; then
      NVM_SOURCE_URL="${GITHUB_USER_CONTENT_URL}/${NVM_GITHUB_REPO}/${NVM_VERSION}/nvm-exec"
    elif [ "_$NVM_METHOD" = "_script-nvm-bash-completion" ]; then
      NVM_SOURCE_URL="${GITHUB_USER_CONTENT_URL}/${NVM_GITHUB_REPO}/${NVM_VERSION}/bash_completion"
    elif [ -z "$NVM_SOURCE_URL" ]; then
      if [ "_$NVM_METHOD" = "_script" ]; then
        NVM_SOURCE_URL="${GITHUB_USER_CONTENT_URL}/${NVM_GITHUB_REPO}/${NVM_VERSION}/nvm.sh"
      elif [ "_$NVM_METHOD" = "_git" ] || [ -z "$NVM_METHOD" ]; then
        NVM_SOURCE_URL="${GITHUB_URL}/${NVM_GITHUB_REPO}.git"
      else
        nvm_echo >&2 "Unexpected value \"$NVM_METHOD\" for \$NVM_METHOD"
        return 1
      fi
    fi
    nvm_echo "$NVM_SOURCE_URL"
  }

  #
  # Node.js version to install
  #
  nvm_node_version() {
    nvm_echo "$NODE_VERSION"
  }

  nvm_download() {
    if nvm_has "curl"; then
      curl --fail --compressed -q "$@"
    elif nvm_has "wget"; then
      # Emulate curl with wget
      ARGS=$(nvm_echo "$@" | command sed -e 's/--progress-bar /--progress=bar /' \
        -e 's/--compressed //' \
        -e 's/--fail //' \
        -e 's/-L //' \
        -e 's/-I /--server-response /' \
        -e 's/-s /-q /' \
        -e 's/-sS /-nv /' \
        -e 's/-o /-O /' \
        -e 's/-C - /-c /')
      # shellcheck disable=SC2086
      eval wget $ARGS
    fi
  }

  install_nvm_from_git() {
    local INSTALL_DIR
    INSTALL_DIR="$(nvm_install_dir)"
    local NVM_VERSION
    NVM_VERSION="${NVM_INSTALL_VERSION:-$(nvm_latest_version)}"
    if [ -n "${NVM_INSTALL_VERSION:-}" ]; then
      # Check if version is an existing ref
      if command git ls-remote "$(nvm_source "git")" "$NVM_VERSION" | nvm_grep -q "$NVM_VERSION"; then
        :
      # Check if version is an existing changeset
      elif ! nvm_download -o /dev/null "$(nvm_source "script-nvm-exec")"; then
        nvm_echo >&2 "Failed to find '$NVM_VERSION' version."
        exit 1
      fi
    fi

    local fetch_error
    if [ -d "$INSTALL_DIR/.git" ]; then
      # Updating repo
      nvm_echo "=> nvm is already installed in $INSTALL_DIR, trying to update using git"
      command printf '\r=> '
      fetch_error="Failed to update nvm with $NVM_VERSION, run 'git fetch' in $INSTALL_DIR yourself."
    else
      fetch_error="Failed to fetch origin with $NVM_VERSION. Please report this!"
      nvm_echo "=> Downloading nvm from git to '$INSTALL_DIR'"
      command printf '\r=> '
      mkdir -p "${INSTALL_DIR}"
      if [ "$(ls -A "${INSTALL_DIR}")" ]; then
        # Initializing repo
        command git init "${INSTALL_DIR}" || {
          nvm_echo >&2 'Failed to initialize nvm repo. Please report this!'
          exit 2
        }
        command git --git-dir="${INSTALL_DIR}/.git" remote add origin "$(nvm_source)" 2>/dev/null ||
          command git --git-dir="${INSTALL_DIR}/.git" remote set-url origin "$(nvm_source)" || {
          nvm_echo >&2 'Failed to add remote "origin" (or set the URL). Please report this!'
          exit 2
        }
      else
        # Cloning repo
        command git clone "$(nvm_source)" --depth=1 "${INSTALL_DIR}" || {
          nvm_echo >&2 'Failed to clone nvm repo. Please report this!'
          exit 2
        }
      fi
    fi
    # Try to fetch tag
    if command git --git-dir="$INSTALL_DIR"/.git --work-tree="$INSTALL_DIR" fetch origin tag "$NVM_VERSION" --depth=1 2>/dev/null; then
      :
    # Fetch given version
    elif ! command git --git-dir="$INSTALL_DIR"/.git --work-tree="$INSTALL_DIR" fetch origin "$NVM_VERSION" --depth=1; then
      nvm_echo >&2 "$fetch_error"
      exit 1
    fi
    command git -c advice.detachedHead=false --git-dir="$INSTALL_DIR"/.git --work-tree="$INSTALL_DIR" checkout -f --quiet FETCH_HEAD || {
      nvm_echo >&2 "Failed to checkout the given version $NVM_VERSION. Please report this!"
      exit 2
    }
    if [ -n "$(command git --git-dir="$INSTALL_DIR"/.git --work-tree="$INSTALL_DIR" show-ref refs/heads/master)" ]; then
      if command git --no-pager --git-dir="$INSTALL_DIR"/.git --work-tree="$INSTALL_DIR" branch --quiet 2>/dev/null; then
        command git --no-pager --git-dir="$INSTALL_DIR"/.git --work-tree="$INSTALL_DIR" branch --quiet -D master >/dev/null 2>&1
      else
        nvm_echo >&2 "Your version of git is out of date. Please update it!"
        command git --no-pager --git-dir="$INSTALL_DIR"/.git --work-tree="$INSTALL_DIR" branch -D master >/dev/null 2>&1
      fi
    fi

    nvm_echo "=> Compressing and cleaning up git repository"
    if ! command git --git-dir="$INSTALL_DIR"/.git --work-tree="$INSTALL_DIR" reflog expire --expire=now --all; then
      nvm_echo >&2 "Your version of git is out of date. Please update it!"
    fi
    if ! command git --git-dir="$INSTALL_DIR"/.git --work-tree="$INSTALL_DIR" gc --auto --aggressive --prune=now; then
      nvm_echo >&2 "Your version of git is out of date. Please update it!"
    fi
    return
  }

  #
  # Automatically install Node.js
  #
  nvm_install_node() {
    local NODE_VERSION_LOCAL
    NODE_VERSION_LOCAL="$(nvm_node_version)"

    if [ -z "$NODE_VERSION_LOCAL" ]; then
      return 0
    fi

    nvm_echo "=> Installing Node.js version $NODE_VERSION_LOCAL"
    nvm install "$NODE_VERSION_LOCAL"
    local CURRENT_NVM_NODE

    CURRENT_NVM_NODE="$(nvm_version current)"
    if [ "$(nvm_version "$NODE_VERSION_LOCAL")" == "$CURRENT_NVM_NODE" ]; then
      nvm_echo "=> Node.js version $NODE_VERSION_LOCAL has been successfully installed"
    else
      nvm_echo >&2 "Failed to install Node.js $NODE_VERSION_LOCAL"
    fi
  }

  install_nvm_as_script() {
    local INSTALL_DIR
    INSTALL_DIR="$(nvm_install_dir)"
    local NVM_SOURCE_LOCAL
    NVM_SOURCE_LOCAL="$(nvm_source script)"
    local NVM_EXEC_SOURCE
    NVM_EXEC_SOURCE="$(nvm_source script-nvm-exec)"
    local NVM_BASH_COMPLETION_SOURCE
    NVM_BASH_COMPLETION_SOURCE="$(nvm_source script-nvm-bash-completion)"

    # Downloading to $INSTALL_DIR
    mkdir -p "$INSTALL_DIR"
    if [ -f "$INSTALL_DIR/nvm.sh" ]; then
      nvm_echo "=> nvm is already installed in $INSTALL_DIR, trying to update the script"
    else
      nvm_echo "=> Downloading nvm as script to '$INSTALL_DIR'"
    fi
    nvm_download -s "$NVM_SOURCE_LOCAL" -o "$INSTALL_DIR/nvm.sh" || {
      nvm_echo >&2 "Failed to download '$NVM_SOURCE_LOCAL'"
      return 1
    } &
    nvm_download -s "$NVM_EXEC_SOURCE" -o "$INSTALL_DIR/nvm-exec" || {
      nvm_echo >&2 "Failed to download '$NVM_EXEC_SOURCE'"
      return 2
    } &
    nvm_download -s "$NVM_BASH_COMPLETION_SOURCE" -o "$INSTALL_DIR/bash_completion" || {
      nvm_echo >&2 "Failed to download '$NVM_BASH_COMPLETION_SOURCE'"
      return 2
    } &
    for job in $(jobs -p | command sort); do
      wait "$job" || return $?
    done
    chmod a+x "$INSTALL_DIR/nvm-exec" || {
      nvm_echo >&2 "Failed to mark '$INSTALL_DIR/nvm-exec' as executable"
      return 3
    }
  }

  nvm_try_profile() {
    if [ -z "${1-}" ] || [ ! -f "${1}" ]; then
      return 1
    fi
    nvm_echo "${1}"
  }

  #
  # Detect profile file if not specified as environment variable
  # (eg: PROFILE=~/.myprofile)
  # The echo'ed path is guaranteed to be an existing file
  # Otherwise, an empty string is returned
  #
  nvm_detect_profile() {
    if [ "${PROFILE-}" = '/dev/null' ]; then
      # the user has specifically requested NOT to have nvm touch their profile
      return
    fi

    if [ -n "${PROFILE}" ] && [ -f "${PROFILE}" ]; then
      nvm_echo "${PROFILE}"
      return
    fi

    local DETECTED_PROFILE
    DETECTED_PROFILE=''

    if [ "${SHELL#*bash}" != "$SHELL" ]; then
      if [ -f "$HOME/.bashrc" ]; then
        DETECTED_PROFILE="$HOME/.bashrc"
      elif [ -f "$HOME/.bash_profile" ]; then
        DETECTED_PROFILE="$HOME/.bash_profile"
      fi
    elif [ "${SHELL#*zsh}" != "$SHELL" ]; then
      if [ -f "${ZDOTDIR:-${HOME}}/.zshrc" ]; then
        DETECTED_PROFILE="${ZDOTDIR:-${HOME}}/.zshrc"
      elif [ -f "${ZDOTDIR:-${HOME}}/.zprofile" ]; then
        DETECTED_PROFILE="${ZDOTDIR:-${HOME}}/.zprofile"
      fi
    fi

    if [ -z "$DETECTED_PROFILE" ]; then
      for EACH_PROFILE in ".profile" ".bashrc" ".bash_profile" ".zprofile" ".zshrc"; do
        if DETECTED_PROFILE="$(nvm_try_profile "${ZDOTDIR:-${HOME}}/${EACH_PROFILE}")"; then
          break
        fi
      done
    fi

    if [ -n "$DETECTED_PROFILE" ]; then
      nvm_echo "$DETECTED_PROFILE"
    fi
  }

  #
  # Check whether the user has any globally-installed npm modules in their system
  # Node, and warn them if so.
  #
  nvm_check_global_modules() {
    local NPM_COMMAND
    NPM_COMMAND="$(command -v npm 2>/dev/null)" || return 0
    [ -n "${NVM_DIR}" ] && [ -z "${NPM_COMMAND%%"$NVM_DIR"/*}" ] && return 0

    local NPM_VERSION
    NPM_VERSION="$(npm --version)"
    NPM_VERSION="${NPM_VERSION:--1}"
    [ "${NPM_VERSION%%[!-0-9]*}" -gt 0 ] || return 0

    local NPM_GLOBAL_MODULES
    NPM_GLOBAL_MODULES="$(
      npm list -g --depth=0 |
        command sed -e '/ npm@/d' -e '/ (empty)$/d'
    )"

    local MODULE_COUNT
    MODULE_COUNT="$(
      command printf %s\\n "$NPM_GLOBAL_MODULES" |
        command sed -ne '1!p' |   # Remove the first line
        wc -l | command tr -d ' ' # Count entries
    )"

    if [ "${MODULE_COUNT}" != '0' ]; then
      # shellcheck disable=SC2016
      nvm_echo '=> You currently have modules installed globally with `npm`. These will no'
      # shellcheck disable=SC2016
      nvm_echo '=> longer be linked to the active version of Node when you install a new node'
      # shellcheck disable=SC2016
      nvm_echo '=> with `nvm`; and they may (depending on how you construct your `$PATH`)'
      # shellcheck disable=SC2016
      nvm_echo '=> override the binaries of modules installed with `nvm`:'
      nvm_echo

      command printf %s\\n "$NPM_GLOBAL_MODULES"
      nvm_echo '=> If you wish to uninstall them at a later point (or re-install them under your'
      # shellcheck disable=SC2016
      nvm_echo '=> `nvm` node installs), you can remove them from the system Node as follows:'
      nvm_echo
      nvm_echo '     $ nvm use system'
      nvm_echo '     $ npm uninstall -g a_module'
      nvm_echo
    fi
  }

  nvm_do_install() {
    if [ -n "${NVM_DIR-}" ] && ! [ -d "${NVM_DIR}" ]; then
      if [ -e "${NVM_DIR}" ]; then
        nvm_echo >&2 "File \"${NVM_DIR}\" has the same name as installation directory."
        exit 1
      fi

      if [ "${NVM_DIR}" = "$(nvm_default_install_dir)" ]; then
        mkdir "${NVM_DIR}"
      else
        nvm_echo >&2 "You have \$NVM_DIR set to \"${NVM_DIR}\", but that directory does not exist. Check your profile files and environment."
        exit 1
      fi
    fi
    # Disable the optional which check, https://www.shellcheck.net/wiki/SC2230
    # shellcheck disable=SC2230
    if nvm_has xcode-select && [ "$(
      xcode-select -p >/dev/null 2>/dev/null
      echo $?
    )" = '2' ] && [ "$(which git)" = '/usr/bin/git' ] && [ "$(which curl)" = '/usr/bin/curl' ]; then
      nvm_echo >&2 'You may be on a Mac, and need to install the Xcode Command Line Developer Tools.'
      # shellcheck disable=SC2016
      nvm_echo >&2 'If so, run `xcode-select --install` and try again. If not, please report this!'
      exit 1
    fi
    if [ -z "${METHOD}" ]; then
      # Autodetect install method
      if nvm_has git; then
        install_nvm_from_git
      elif nvm_has curl || nvm_has wget; then
        install_nvm_as_script
      else
        nvm_echo >&2 'You need git, curl, or wget to install nvm'
        exit 1
      fi
    elif [ "${METHOD}" = 'git' ]; then
      if ! nvm_has git; then
        nvm_echo >&2 "You need git to install nvm"
        exit 1
      fi
      install_nvm_from_git
    elif [ "${METHOD}" = 'script' ]; then
      if ! nvm_has curl && ! nvm_has wget; then
        nvm_echo >&2 "You need curl or wget to install nvm"
        exit 1
      fi
      install_nvm_as_script
    else
      nvm_echo >&2 "The environment variable \$METHOD is set to \"${METHOD}\", which is not recognized as a valid installation method."
      exit 1
    fi

    nvm_echo

    local NVM_PROFILE
    NVM_PROFILE="$(nvm_detect_profile)"
    local PROFILE_INSTALL_DIR
    PROFILE_INSTALL_DIR="$(nvm_install_dir | command sed "s:^$HOME:\$HOME:")"

    SOURCE_STR="\\nexport NVM_DIR=\"${PROFILE_INSTALL_DIR}\"\\n[ -s \"\$NVM_DIR/nvm.sh\" ] && \\. \"\$NVM_DIR/nvm.sh\"  # This loads nvm\\n"

    # shellcheck disable=SC2016
    COMPLETION_STR='[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"  # This loads nvm bash_completion\n'
    BASH_OR_ZSH=false

    if [ -z "${NVM_PROFILE-}" ]; then
      local TRIED_PROFILE
      if [ -n "${PROFILE}" ]; then
        TRIED_PROFILE="${NVM_PROFILE} (as defined in \$PROFILE), "
      fi
      nvm_echo "=> Profile not found. Tried ${TRIED_PROFILE-}~/.bashrc, ~/.bash_profile, ~/.zprofile, ~/.zshrc, and ~/.profile."
      nvm_echo "=> Create one of them and run this script again"
      nvm_echo "   OR"
      nvm_echo "=> Append the following lines to the correct file yourself:"
      command printf "${SOURCE_STR}"
      nvm_echo
    else
      if nvm_profile_is_bash_or_zsh "${NVM_PROFILE-}"; then
        BASH_OR_ZSH=true
      fi
      if ! command grep -qc '/nvm.sh' "$NVM_PROFILE"; then
        nvm_echo "=> Appending nvm source string to $NVM_PROFILE"
        command printf "${SOURCE_STR}" >>"$NVM_PROFILE"
      else
        nvm_echo "=> nvm source string already in ${NVM_PROFILE}"
      fi
      # shellcheck disable=SC2016
      if ${BASH_OR_ZSH} && ! command grep -qc '$NVM_DIR/bash_completion' "$NVM_PROFILE"; then
        nvm_echo "=> Appending bash_completion source string to $NVM_PROFILE"
        command printf "$COMPLETION_STR" >>"$NVM_PROFILE"
      else
        nvm_echo "=> bash_completion source string already in ${NVM_PROFILE}"
      fi
    fi
    if ${BASH_OR_ZSH} && [ -z "${NVM_PROFILE-}" ]; then
      nvm_echo "=> Please also append the following lines to the if you are using bash/zsh shell:"
      command printf "${COMPLETION_STR}"
    fi

    # Source nvm
    # shellcheck source=/dev/null
    \. "$(nvm_install_dir)/nvm.sh"

    nvm_check_global_modules

    nvm_install_node

    nvm_reset

    nvm_echo "=> Close and reopen your terminal to start using nvm or run the following to use it now:"
    command printf "${SOURCE_STR}"
    if ${BASH_OR_ZSH}; then
      command printf "${COMPLETION_STR}"
    fi
  }

  #
  # Unsets the various functions defined
  # during the execution of the install script
  #
  nvm_reset() {
    unset -f nvm_has nvm_install_dir nvm_latest_version nvm_profile_is_bash_or_zsh \
      nvm_source nvm_node_version nvm_download install_nvm_from_git nvm_install_node \
      install_nvm_as_script nvm_try_profile nvm_detect_profile nvm_check_global_modules \
      nvm_do_install nvm_reset nvm_default_install_dir nvm_grep
  }

  [ "_$NVM_ENV" = "_testing" ] || nvm_do_install

} # this ensures the entire script is downloaded #
